Hume, T., Gerbeaux, P., Hart, D., Kettles, H., Neale, D. 2016. A classification of New Zealand's coastal hydrosystems. Report prepared for the Ministry for the Environment. Niwa Client Report 2016-062. 120pp. October 2016. This report can be found on the Ministry for the Environment publication website www.mfe.govt.nz/publication-search